采用浸渍法制备了PdO负载Cu3V2O8复合光催化剂,利用XRD、SEM对催化剂进行表征,研究其物相和表面形貌特征。在20W紫外灯照射下,以甲基橙为光催化模型降解产物,研究Pd的负载量对Cu3V2O8光催化活性的影响,探讨了负载Pd对光催化活性影响的机制。实验表明,Pd的负载对Cu3V2O8光催化活性影响很大,当Pd负载量为2.3%时光催化效果达到最好,比纯Cu3V2O8光催化剂提高40%左右.
The PdO-loaded Cu3V2O8 photocatalysts were prepared with impregnation method.The obtained samples were characterized by XRD,SEM and the effect of Pd-loaded contents on their photocatalytic activity was studied by photocatalytic oxidation of methyl orange under 20 W UV light irradiation.The mechanism was also analyzed.The results show that PdO can remarkably affect the photocatalytic activity.The photocatalytic activity of Pd-loaded Cu3V2O8 was significantly enhanced and the decolorization rate of MO can be increased by 40% compared with pure Cu3V2O8 sample when loading content is 2.3 wt %.